Does adding copeptin to cardiac troponin I improve the early rule-out of acute myocardial infarction in patients presenting to the emergency department with chest pain within 6 hours of onset?
Adding copeptin to sensitive cardiac troponin I allows for the safe and rapid rule-out of acute myocardial infarction in over half of emergency department patients presenting with early chest pain.
OBJECTIVES: The goal of this study was to demonstrate that copeptin levels 14 pmol/l in 23 (72%) of 32 patients. Non-ST-segment elevation myocardial infarctions undetected by cTnI at 0 h were detected with copeptin >14 pmol/l in 10 (53%) of 19 patients. Projected average time-to-decision could be reduced by 43% (from 3.0 h to 1.8 h) by the early rule out of 58% of patients. Both abnormal copeptin and cTnI were predictors of death at 180 days (p 99% in patients presenting with suspected acute coronary syndromes. This combination has the potential to rule out AMI in 58% of patients without serial blood draws.
Maisel et al. (Tue,) studied this question.
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